Upload files on Android

1. Android:

1.1 layout file:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />         <TextView        android:id="@+id/mTextView1"         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />      <TextView        android:id="@+id/mTextView2"         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />              <Button        android:id="@+id/mButton1"         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />     </LinearLayout>

1.2 activity:

Package Org. yang. android. upload; import Java. io. file; import android. app. activity; import android. OS. bundle; import android. OS. environment; import android. view. view; import android. widget. button; import android. widget. textview; public class androiduploadfileactivity extends activity {private string newname = "linux.jpg"; // path of the local file to be uploaded: Private string uploadfile = environment. getexternalstoragedirectory () + "/IM Age/psb.jpg "; // Private string actionurl =" http: // 172.17.151.54: 8090/finalproject/JSP/androiduploadfile "; private textview mtextview1; private textview mtextview2; private button mbutton1; file = new file (uploadfile); @ overridepublic void oncreate (bundle savedinstancestate) {super. oncreate (savedinstancestate); setcontentview (R. layout. main); If (file. exists () {system. out. println ("file is Exists !! ");} Else {system. Out. println (" file is not exists !! ");} System. out. println ("uploadfile is" + uploadfile); mtextview1 = (textview) findviewbyid (R. id. mtextview1); mtextview1.settext ("filepath:/N" + uploadfile); mtextview2 = (textview) findviewbyid (R. id. mtextview2); mtextview2.settext ("uploadpath:/N" + actionurl);/* set the onclick event processing of mbutton */mbutton1 = (button) findviewbyid (R. id. mbutton1); mbutton1.setonclicklistener (new view. onclicklistener () {public void onclick (view v) {fileuplaodutil. uploadfile (androiduploadfileactivity. this. file, actionurl );}});}}

1.2 fileuploadutil. Java file:

Package Org. yang. android. upload; import Java. io. dataoutputstream; import Java. io. file; import Java. io. fileinputstream; import Java. io. ioexception; import Java. io. inputstream; import java.net. httpurlconnection; import java.net. malformedurlexception; import java.net. URL; import Java. util. UUID; import android. util. log;/*** upload tool class ** @ author spring sky Email: vipa1888@163.com QQ: 840950105 myname: Shi mingzheng */Public C Lass fileuplaodutil {Private Static final string tag = "uploadfile"; Private Static final int time_out = 10*1000; // time-out Private Static final string charset = "UTF-8 "; // set the encoding/*** Android uploads a file to the server ** @ Param file * the file to be uploaded * @ Param requesturl * the requested rul * @ return returns the response content */ public static string uploadfile (File file, string requesturl) {string result = NULL; string boundary = UUID. randomuuid (). tostring (); // String prefix = "--", line_end = "\ r \ n"; string content_type = "multipart/form-Data "; // content type try {URL url = new URL (requesturl); httpurlconnection conn = (httpurlconnection) URL. openconnection (); Conn. setreadtimeout (time_out); Conn. setconnecttimeout (time_out); Conn. setdoinput (true); // allow the input stream Conn. setdooutput (true); // allow the output stream Conn. setusecaches (false); // cache Conn is not allowed. setrequestmethod ("Post "); // Request Method Conn. setrequestproperty ("charset", charset); // sets the encoding Conn. setrequestproperty ("connection", "keep-alive"); Conn. setrequestproperty ("Content-Type", content_type + "; boundary =" + boundary); If (file! = NULL) {/*** when the file is not empty, package the file and upload it */dataoutputstream dos = new dataoutputstream (Conn. getoutputstream (); stringbuffer sb = new stringbuffer (); sb. append (prefix); sb. append (Boundary); sb. append (line_end);/*** note: the value in name is that the server requires the key. Only this key can be used to obtain the corresponding file * filename is the file name, contains the suffix, for example, abc.png */SB. append ("content-Disposition: Form-data; name = \" uploaded \ "; filename = \" "+ file. getname () + "\" "+ line_end); sb. appen D ("Content-Type: Application/octet-stream; charset =" + charset + line_end); sb. append (line_end); dos. write (sb. tostring (). getbytes (); inputstream is = new fileinputstream (File); byte [] bytes = new byte [1024]; int Len = 0; while (LEN = is. read (bytes ))! =-1) {dos. write (bytes, 0, Len);} is. close (); dos. write (line_end.getbytes (); byte [] end_data = (prefix + boundary + prefix + line_end ). getbytes (); dos. write (end_data); dos. flush ();/*** get response code 200 = success when the response is successful, get the response stream */INT res = Conn. getresponsecode (); log. E (TAG, "response code:" + Res); // If (RES = 200) // {log. E (TAG, "request success"); inputstream input = Conn. getinputstream (); stringbuffer SB1 = new stringbuff Er (); int SS; while (Ss = input. Read ())! =-1) {sb1.append (char) SS);} result = sb1.tostring (); log. E (TAG, "Result:" + result); //} // else {// log. E (TAG, "request error"); // }}} catch (malformedurlexception e) {e. printstacktrace ();} catch (ioexception e) {e. printstacktrace ();} return result ;}}

2. server side:

package org.android.action.file;import java.io.File;import org.android.tool.UploadFileTool;import org.apache.commons.io.FileUtils;import com.opensymphony.xwork2.ActionSupport;public class UploadFileAction extends ActionSupport{private static final long serialVersionUID = 1L;private int result;private String msg;private String uploadedFileName;private File uploaded;public int getResult(){return result;}public void setResult(int result){this.result = result;}public String getMsg(){return msg;}public void setMsg(String msg){this.msg = msg;}public String getUploadedFileName(){return uploadedFileName;}public void setUploadedFileName(String uploadedFileName){this.uploadedFileName = uploadedFileName;}public File getUploaded(){return uploaded;}public void setUploaded(File uploaded){this.uploaded = uploaded;}// --------------------------------------Method--------------------------------------------------//public void receiveFile() throws Exception{File f = new File("e:\\" + getUploadedFileName());System.out.println("e:\\" + getUploadedFileName());FileUtils.copyFile(getUploaded(), f);System.out.println("UPLOAD SUCCESS!!!!!! + Java Web");}}